State-level as well as metro, micro, and noncore data were calculated using county-level data.

The 2003 core-based statistical area developed by the U.S. Office of Management and Budget was used to define a county as metropolitan, micropolitan, or non-core; nonmetro calculations include micropolitan and non-core counties.

Components of population change for the year 2000 include the period between 4/1/2000 and 7/1/2000; components of population change for the year 2009 include the period between 7/1/2008 and 7/1/2009. For more information on components of population change click here.

Income, Employment, Establishments, Farms, Travel Time to Work

1989 Median household income was used for the year 1990

Goods-producing jobs includes the following industrial sectors: forestry, fishing, etc., mining, construction, and manufacturing; service producing encompasses all other sectors including government and government enterprises